/* * Breaker for localclaims protocol; sequential composition variant 1 * * Starts out as NSL3; last message (label3) has added name to avoid * confusion with the later messages. * * Added messages labeled with x1 and x2 to allow for breaking the other * protocol. */ const pk: Function; secret sk: Function; inversekeys (pk,sk); protocol lcbreakerS1(I,R) { role I { const ni,ni2: Nonce; var nr: Nonce; var x: Nonce; send_1(I,R, {I,ni}pk(R) ); read_2(R,I, {ni,nr,R}pk(I) ); send_3(I,R, {nr,I}pk(R) ); read_x1(R,I, { x }pk(I) ); send_x2(I,R, { x }ni ); send_lc(I,R, {ni2}pk(R) ); claim_i0(I,Secret,ni2); claim_i1(I,Secret,ni); claim_i2(I,Secret,nr); } role R { var ni,ni2: Nonce; const nr: Nonce; const x: Nonce; read_1(I,R, {I,ni}pk(R) ); send_2(R,I, {ni,nr,R}pk(I) ); read_3(I,R, {nr,I}pk(R) ); send_x1(R,I, { x }pk(I) ); read_x2(I,R, { x }ni ); read_lc(I,R, {ni2}pk(R) ); claim_r0(R,Secret,ni2); claim_r1(R,Secret,ni); claim_r2(R,Secret,nr); } } const Eve: Agent; untrusted Eve; const ne: Nonce; compromised sk(Eve);